Grinding-wheel



"(No' Modem;

. J. H. KING.

GRINDING WHEEL.

" Pate nted-I'eb. 12, 1895..

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UNITED STATES" PATENT OFFICE.

JACOB 1-1. KING, OF PIQUA, orno.

GRINDING-WHEEL.

SPECIFICATION forming part of Letters Patent No. 533,958, dated February 12, 1895 Application filed FebruaryZB, 1894:. Serial No. 501,188- (No model.)

TaaZZ whom it mag concern.-

Be it known that I, JACOB H; KING, a citizen 1 of the United States, and a resident of'Piqua,

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Miami county, State of Ohio, have invented certain new and useful Improvements in Grinding-Wheels; and my preferred manner of carrying out the invention is set forth in the following full, clear, and exact description, terminating .with claims particularly specifying the novelty. v

This invention relates to grinding and polishing, and more especially to the abrading materials and tools used therein; and the obwithout -the hub, and through two moiste n' ersshowing how' they can be applied to said wheel. Fig. 3 is a section without the hubthe driving shaft here being extended through the wheel and carrying a moistener on its Referring to the said drawings, the letter E designates a grinding wheel which may be of natural stone, emery, or any other suitable grinding composition or medium-the ordinary emery wheel of commerce being preferred; and d. is the driving shaft or arbor upon which this wheel is mounted. The connection between the wheel and shaft may be any that will answer the purpose; but as I intend to use this wheel for grinding harvester knives where perhaps as much Weight "becoming loose will be thrown on one face of the wheel as on one edge, I preferably employ a collar 01 of some considerable size secured strongly to the shaft and resting firmly against one face of the wheel so as to prevent the latter from under the strain brought to bear upon it. V

In Fig. 1 I have shown one mode of constructin g and mounting the grinding wheel E although I make no claim to this feature. The counter-shaft or arbor d is screwthreaded at its outer end. Asocket piece it of suitable metal with radial prongs is seated in a central aperture of the grinding Wheel and secured therein preferably by the use of some soft metal melted, poured, and hardened around the socket piece, as shown at it, this being accomplished with lead, Babbitt metal, brimstone, or any other suitable metal or com position capable of holding the block or socket piece permanentlyin the wheel; or, if desired, the block or socket piece may be formed in the wheel, when the same is made of emery or similar composition, so as to be located permanently therein. This block or socket piece is internally screw-threaded to correspond with the screw-threaded end of the shaft, and is screwed thereon, the shaft terminating just short of the outer face of the grinding wheel. p

My improved moistener consists of a comparatively thick collar D hollowed out. onits inner side so as to present a cup-shaped face adjacent the stone and preferablyhaving an integral hub d which may take onto the screw-.

threads of the shaft 61. At one point in the cup is an aperture f which may be threaded so as to receive a threaded plug F, or it may be smooth and acork substituted for the plug.

The letter F designates a sheet of pasteboard, fabric, or. similar somewhat porous material, or it may be a piece of imporous material provided with a number of fine perforations. This sheet is disk-shaped with a hole at its center which is passed over the shaft, and it is of sufficient size to lie flat against the face of the grinding wheel and be clamped there by the annular edge of thecup D. Inuse, the plug F is removed and the chamber Within the cup filled with water or other moisten'ing liquid, after which'the plug is replaced to close the chamber and the wheel is adjusted more or less closely toward the'edges of the cup so as to more or less indent the edges of the disk and regulate-the size of its pores. thewheel causes the liquid within the cup to be thrown outward by centrifugal force, and it percolates through the disk and moistens the entire adjacent face of the stone-even Thereafter the rotation of running over onto the outer edge thereof, as will be understood. From time to time the cup can be refilled as found necessary. It will be seen in Fig. 1 that I have employed the hub it above described and that the cup 1) holds the grinding stone rigidly at right angles to the length of the shaft.

In Fig. 2 I have shown two of the said moisteners as applied to the wheel, and here the hub it above described is omitted. The shaft d is simply carried through a hole in the center of the wheel and through and beyond the hub d of the outer cup, and a nut N is applied to the threaded outer end of the shaft to clamp the parts in position. However, the hub h can be used in the wheel if desired. Except in the case of large grinding wheels, I do not consider this construction as useful as those elsewhere shown, because both faces of the wheel are covered to a certain extent by the cups and are therefore not useful for grinding purposes.

In Fig. 3 I have shown a slightly different arrangement wherein a collar d is employed and the moistener is on the outer side of the wheel opposite the collar. The latter may be made quite small so as not to interfere with grinding against the inner face of the wheel, and the moistener as large as necessary. In this view I have omitted the hub h within the wheel, but it is obvious that it may be used if desired.

Considerable change maybe made in the specific details of construction without departing from the principle of my invention. I have shown three methods or modes of mounting the wheel and of using the collar or the moistener, or both. It will be understood, however, that the moistener may be used without the collar and singly or in duplicate as shown. lVith such exceptions as are necessary the materials may be varied to a considerable extent, and the sizes, proportions, and exact shapes of parts are immaterial.

It will be obvious that the cup,D might contain a sponge, waste, or other absorbent material or packing as indicated at Q for holding the liquid.

Vhat is claimed as new isv 1. In a grinding wheel, the combination with a shaft, a wheel mounted thereon, and means for adjusting the wheel longitudinally on the shaft; of a moistener consisting of a collar having a dished or cup-shaped open face adjacent the wheel and a closed bottom remote from the wheel, means forfilling the cup with moisteningliquid, and a porous disk mounted on the shaft adjacent the wheel and clamped against the wheel by the edges of the cup, as and for the purpose set forth.

2. In a grinding wheel, the combination with a shaft, and a wheel mounted thereon; of a moistener movable longitudinally on said shaft and consisting of a collar havinga dished or cup-shaped open face adjacent the Wheel and a closed bottom remote from the wheel, a removable packing within the cup susceptible of retaining a moistening liquid, a porous disk clamped between the edges of the cup and the contiguous face of the wheel, a filling orifice in the cup, and means for clamping and holding the cup and wheel in position, as and for the purpose set forth.

In testimony whereof I have hereunto subscribed my signature on this the 20th day of February, A. D. 1894.

JACOB ll. KING.

Witnesses;

S. S. MCKINNEY, W. McWILLIAMs. 

